0501020.WR Littelfuse Inc, 0501020.WR Datasheet - Page 2

• Manufacturer Part Number: 0501020.WR
• Description: FUSE 20A 24V SMD 1206
• Manufacturer: Littelfuse Inc
• Series: 501r

Specifications of 0501020.WR

• Fuse Type: Fast Acting
• Voltage - Rated: 32VDC
• Current: 20A
• Package / Case: 1206 (3216 Metric)
• Size / Dimension: 0.126" L x 0.063" W x 0.032" H (3.20mm x 1.60mm x 0.82mm)
• Mounting Type: Surface Mount
• Operating Temperature: -55°C ~ 150°C
• Dc Cold Resistance: 0.002 Ohm
• Melting I²t: 38.5
• Current Rating: 20 Amps
• Voltage Rating: 24 Volts
• Fuse Size / Group: 1206
• Termination Style: SMD/SMT
• Body Material: Ceramic
• Interrupt Rating: 150 Amps at 24 VoltsDC
• Operating Temperature Range: - 55 C to + 150 C
• Dimensions: 3.2 mm L x 1.63 mm W
• Product: Surface Mount Fuse
• Mounting Style: SMD/SMT
• Resistance: 0.002 Ohms
• Voltage Rating Vac: 24V
• Voltage Rating Vdc: 24V
• Fuse Current: 20A
• Breaking Capacity: 150A @ 24VDC
• Blow Characteristic: Fast Acting
• Fuse Case Style: 1206
• External Depth: 3.118mm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Color: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 501020; F2920TR

1. Rerating depicted in this curve is in addition to the standard rerating of 20% for
501 Series
Temperature Rerating Curve
Soldering Parameters
Reflow Condition
Pre Heat
Average Ramp-up Rate (Liquidus Temp
(T
T
Reflow
Peak Temperature (T
Time within 5°C of actual peak
Temperature (t
Ramp-down Rate
Time 25°C to peak Temperature (T
Do not exceed
Wave Soldering
continuous operation.
I = (0.80)(0.85)I
S(max)
L
) to peak)
140
120
100
80
60
40
to T
-65
L
-45
RAT
- Ramp-up Rate
- Temperature Min (T
- Temperature Max (T
- Time (Min to Max) (t
- Temperature (T
- Temperature (t
= (0.68)I
p
-25
)
RAT
P
-5
)
TEMPERATURE (°C)
15
L
L
)
) (Liquidus)
Introduction to Circuit Protection
260°C, 10 seconds max.
Introduction to Circuit Protection
35
s(min)
s(max)
s
)
P
55
)
)
)
75
150°C
200°C
60 – 180 seconds
3°C/second max.
5°C/second max.
217°C
60 – 150 seconds
260
10 – 30 seconds
6°C/second max.
8 minutes max.
260°C
95
+0/-5
115
Surface Mount Fuses
°C
Ceramic Fuse > 501 Series
135
155
26
Transientology
Average Time Current Curves
0.001
T
T
0.01
S(max)
S(min)
0.1
10
25
1
T
T
P
L
1
time to peak temperature
Please refer to www.littelfuse.com/series/501.html for current information.
(t 25ºC to peak)
t
Preheat
S
CURRENT IN AMPERES
10
Specifications are subject to change without notice.
Ramp-up
100
t
t
P
L
Time
© 2009 Littelfuse, Inc.
Critical Zone
Ramp-down
T
L
to T
1000
P